Acer Aspire 1 A115-31 (2021) Specifications
The Acer Aspire 1 A115-31 (2021) is a versatile laptop offering solid performance for everyday computing. This guide covers RAM, SSD, charger compatibility, and upgrade paths for this model. For a comprehensive overview of all Acer upgradeable models, visit the Acer Laptop Upgrades hub.
| Component | Specification |
|---|---|
| Processor | Intel Celeron N4000 / Pentium Silver N5000 |
| RAM | DDR4, 1 Soldered slot (upgradeable) |
| Max RAM | 4GB |
| Storage | eMMC eMMC 5.1, 1 slot |
| Charger | 45W Barrel connector |
| Ports | 1× USB-C, 2× USB-A, HDMI, 3.5mm audio |
| Display | 15.6" HD (1366×768) |
| Weight | 1.9 kg (4.19 lbs) |
Memory Upgrade Path

The Aspire 1 A115-31 features 1 SO-DIMM slot for DDR4 RAM, allowing upgrades up to 4GB. The slot is user-accessible, and the upgrade process is straightforward.
Recommended DDR4 RAM Upgrades:
- Corsair Vengeance DDR4 SO-DIMM — Reliable DDR4 laptop memory with wide compatibility.
- Kingston Fury Impact DDR4 SO-DIMM — Compact high-performance DDR4 for laptops.
- Crucial DDR4 SO-DIMM — Affordable DDR4 with solid performance.
Storage Expansion (M.2 NVMe)

The Aspire 1 A115-31 uses a standard eMMC NVMe SSD with a eMMC 5.1 interface. The single M.2 slot supports drives up to 2TB.
Recommended eMMC SSDs:
- Samsung 990 Pro NVMe 2280 — Flagship NVMe SSD with exceptional speeds.
- WD Black SN850X 2280 — High-performance NVMe with excellent sustained writes.
- Crucial P5 Plus NVMe 2280 — Excellent value NVMe with strong real-world performance.
Power Delivery & Charging
The Aspire 1 A115-31 uses a 45W Barrel connector charger. We recommend using the original charger or a compatible replacement rated for the same wattage.
Port & Docking Capabilities
Connectivity: 1× USB-C, 2× USB-A, HDMI, 3.5mm audio
A USB-C docking station like the Anker 577 USB-C Hub provides additional ports including HDMI, Ethernet, and USB-A for desktop convenience.
Upgrade Difficulty & Tools Required
The Aspire 1 A115-31 has a difficulty rating of 5/5 for upgrades (5 = easiest). The upgrade process is very easy.
Tools needed:
- Phillips screwdriver (M2.5 or similar)
- Plastic spudger or pry tool (for bottom panel clips)
- ESD wrist strap (optional but recommended)
We recommend backing up your data and consulting the official service manual before opening the chassis.
Frequently Asked Questions
Can I upgrade the RAM in the Acer Aspire 1 A115-31?
Yes, the Aspire 1 A115-31 has 1 SO-DIMM slot for user-upgradeable DDR4 memory.
What is the maximum RAM for the Aspire 1 A115-31?
The Aspire 1 A115-31 supports up to 4GB of DDR4 memory.
Can I add a second SSD to the Aspire 1 A115-31?
The Aspire 1 A115-31 has 1 M.2 slot. You can replace the existing SSD with a larger drive.
What charger does the Aspire 1 A115-31 need?
The Aspire 1 A115-31 uses a 45W Barrel connector charger.
Is the Aspire 1 A115-31 easy to upgrade?
The Aspire 1 A115-31 has a difficulty rating of 5/5. Standard screws and clear access to components.
Recommended Products
These are the products we recommend based on this guide. All links go to Amazon UK where you can check current prices and availability.
| Product | Why We Recommend It | Amazon UK |
|---|---|---|
| Corsair Vengeance DDR4 SO-DIMM | Reliable DDR4 laptop memory with wide compatibility. | View on Amazon UK |
| Kingston Fury Impact DDR4 SO-DIMM | Compact high-performance DDR4 for laptops. | View on Amazon UK |
| Crucial DDR4 SO-DIMM | Affordable DDR4 with solid performance. | View on Amazon UK |
| Samsung 990 Pro NVMe 2280 | Flagship NVMe SSD with exceptional speeds. | View on Amazon UK |
| WD Black SN850X 2280 | High-performance NVMe with excellent sustained writes. | View on Amazon UK |
| Crucial P5 Plus NVMe 2280 | Excellent value NVMe with strong real-world performance. | View on Amazon UK |
Prices and availability may vary. As an Amazon Associate, we earn from qualifying purchases.
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